Stability control of large oil droplets by layer-by-layer deposition using polyelectrolyte dietary fibers

Polarization Effects of Dielectric Nanoparticles in Aqueous Charge-Asymmetric Electrolytes

“…A similar depletion of ions, due mainly to ionic self-image electrostatic interactions, has been also observed in computer simulations of charged spherical colloids in the presence of dielectric discontinuities. − Nevertheless, the experimental measurement of forces between small nanoparticles is significantly more difficult than in the case of their mesoscopic counterpart, that is, colloidal particles with linear dimensions of microns. Fortunately, in both instances it is possible to characterize the electrostatic screening of charged particles via electrophoretic mobility experiments, − in which an external electric field is applied. , As a result, the charged colloids reach a terminal velocity that can be used to define the corresponding electrophoretic mobility. This quantity is a useful parameter for characterizing the macroscopic behavior of colloids in solution, including their coagulation and stability regimes.…”

Surface Freezing of Cetyltrimethylammonium Chloride–Hexadecanol Mixed Adsorbed Film at Dodecane–Water Interface

“…Microcapsules that release contained molecules by external stimuli are a topical issue in recent colloid chemistry. Microgels with pH- and temperature-responsive polymers are widely studied promising microcapsules. , There are more specific examples for controlled-release systems such as Pickering emulsions stabilized by a glycerol monostearate (GMS) crystalline shell that demulsify when the GMS crystals are exchanged with added surfactant molecules (sorbitan monooleate), and O/W emulsions covered with cationic (chitosan) or anionic (carboxymethyl cellulose) polyelectrolyte fibers that changes their stability by pH . The present study can be a novel approach of such microcapsule systems in which the surface phase transition triggers the release of oil-soluble payloads.…”

“…36,37 There are more specific examples for controlled-release systems such as Pickering emulsions stabilized by a glycerol monostearate (GMS) crystalline shell that demulsify when the GMS crystals are exchanged with added surfactant molecules (sorbitan monooleate), 38 and O/W emulsions covered with cationic (chitosan) or anionic (carboxymethyl cellulose) polyelectrolyte fibers that changes their stability by pH. 39 The present study can be a novel approach of such microcapsule systems in which the surface phase transition triggers the release of oil-soluble payloads. The most important advantage of our system is that the widely used constituents of O/W emulsions (i.e., surfactant and oil) provide a function of controlled release.…”

Stability of flocculated particles in concentrated and high hydrophilic solid layer-by-layer (LBL) emulsions formed using whey proteins and gum Arabic

“…The layered interface could provide the particles with a higher resistance towards disruptions (McClements, 1999). The application of LBL technology with protein coated oil particles can enhance emulsion stability towards changes in pH, ionic strength, heat in thermal processing and drying, aging, freeze thaw cycling and lipid oxidation (Aoki, Decker, & McClements, 2005;Gharsallaoui et al, 2010;Gu et al, 2005;Iwata, Neves, Watanabe, Sato & Ichikawa, 2014;Lim, Griffin, & Roos, 2014;Ogawa, Decker, & McClements, 2003). LBL emulsions are produced by the electrostatic attraction in the presence of the charged protein interface with an oppositely charged polyelectrolyte in the continuous phase (Gu et al, 2005;Guzey & McClements, 2006;Moreau et al, 2003).…”